Intelligent water supplying device for high-speed water bearing

Abstract

The invention discloses an intelligent water supplying device for a high-speed water bearing. The intelligent water supplying device comprises a frequency-conversion constant-pressure water supplying device and an automatic water discharging device, wherein the frequency-conversion constant-pressure water supplying device comprises a large water returning tank, a multi-stage water pump unit, a frequency-conversion control cabinet, a diaphragm pressure tank, a low-water-level sensor, a pressure sensor, an electric contact pressure meter, an electric contact flow meter, a fine filter and a valve; the automatic water discharging device comprises a small water returning tank, a low-pressure water discharging pump, a coarse filter and a floating-ball switch controller. The intelligent water supplying device has the advantages that high-pressure water supplying equipment is formed by adopting a plurality of water pumps which are connected in parallel, and the rotating speeds of the water pumps and the quantity of the arranged water pumps are automatically adjusted by a frequency converter, so that the constant water supplying pressure at a water using end is guaranteed; and the circulating use of water in the water returning tank is controlled intelligently by adopting a floating-ball liquid level controller.

Description

technical field [0001] The invention belongs to the technical field of lubrication and bearings, and specifically relates to a variable frequency constant pressure water supply device and an automatic drainage device, which are mainly used for the lubrication of high-speed hydrostatic pressure bearings, and can also be used for industrial and agricultural production and residential water use. Background technique [0002] High-speed hydrostatic bearings have a series of advantages such as high rigidity, good vibration and noise performance, high rotation accuracy, low wear, and long life, and adapt to the development needs of high-speed, high-precision, and high-power industrial rotating machinery. However, the traditional external oil supply system can no longer meet the requirements of the hydrostatic bearing water supply system. The main reasons are: water is different from oil, and most metal materials in water are easily aged and corroded; at high speeds, water bearings ...

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Problems solved by technology

As for the water supply device for industrial lubrication, patent document CN201152254Y discloses a cooling and lubricating water device for pumps, and CN1821602A discloses a high-performance water-lubricated mechanical transmission system, etc., but these devices do not solve the problem of water supply pressure pulsation, nor do they involve drainage problem, it is only suitable for the lubrication of low-speed water bearings; for other industrial or domestic water supply devices, a large number of patent documents are disclosed. Water supply automatic control device, CN2730946Y discloses an energy-saving device for secondary constant pressure water supply with speed regulation, CN2184017Y discloses a multifunctional frequency conversion constant pressure water supply device, CN1267770A discloses a multipurpose comprehensive water supply system, etc. These devices generally have The frequency conversion constant pressure function or the pressure and flow can be controlled separately, which reflects the characteristics of energy saving and high degree of automation. However, most of them use low-pressure water pumps, which can only reach a few atmospheric pressures. Even industrial high-pressure water supply devices also have large The problem of water supply pressure pulsation is not suitable for the lubrication of high-speed hydrostatic bearings

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